Skysports.com understands a host of sides are chasing Serbian defender Dusko Tosic.
Tosic is available on a free transfer after his registration at Portsmouth was withheld by the Premier League.
Portsmouth signed Tosic as a free agent in February, but due to the club's financial plight the Premier League stopped the club from securing his services.
Tosic ended up joining Queens Park Rangers on loan in March and he impressed during his spell at Loftus Road
As he has not been registered at Fratton Park, Tosic can leave on a free transfer and a number of clubs are keeping tabs on the full-back's situation.
It is believed that Bolton, Celtic, Leeds and Turkish champions Bursaspor are all interested.
The player's agent, Zoran Krneta of Star Signings, admits a number of clubs are chasing Tosic and that the 25-year-old would prefer to stay in England.
"There are a few clubs interested in Dusko but he's taking his time and wants to make the right decision after what happened previously at Portsmouth," Krneta told skysports.com.
"There are a few offers from abroad but at this time he would prefer to stay in England."